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USER GUIDETION GUIDE
SELEC

Indexable Counterboring Heads
Applications STS (Single Tube System) DTS (Double Tube System)
DSC - EA DSC - EC DSC – IA/IC DDC - EA/EC

Drill head DEEP DRILLING - BTA SYSTEM SOLID CARBIDE DRILLS

Drill diameter (mm) ø25 - 39.99 ø40 - 291.99 ø25 - 39.99 ø40 - 293.99 ø25 - 39.99 ø40 - 183.99
External 4-start thread 3 3 - - 3 3
Thread type Internal single-start thread - - 3 3 - -

Hole tolerance IT10 IT10 IT10 IT10 IT10 IT10

Surface finish Ra (μm) 2 2 2 2 2 2
Deep hole drilling machines 3 3 3 3 3 3

Machine NC machines - - - - - - - - 3 3
3
Lathes
3
Machining centers M/C - - - - 3 3
Steel
P Stainless ••• ••• ••• ••• ••• •••
•••
•••
•••
•••
•••
•••
Workpiece material K Non-ferrous ••• ••• ••• ••• ••• •••
M
Cast iron
•••
•••
•••
•••
N
•••
•••
S
Superalloys
••
••
••
••
••
••
H Hard materials (≥40HRC) •• •• •• •• •• ••
Insert type XPMT TPMX XPMT TPMX XPMT TPMX
Plus Cartridge and Guide pad - - -
+1 mm - +5 mm 3 3 3
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•••(Excellent) •(Standard)

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